Coupling-link



D. II/IADIII.

COUPLING LINK.

APPLICATION FILED APII.22. I9I9.'

1,35 1,298. v l Patented Aug. 31, 1920.

; OAT@ :Devin MADILL, or slim, LAKE cirv,l UTAH. l

couPLiive-LINK. f

-' Y -App1ication fiiefiiipriiaz,

T all whom t may concern:

curely fastened about the tire of a'vehicle wlieel.

The invention has as a further obJect to lprovide a link wherein the ends of the chain may be locked in engagement with the link so that the possibility of displacement ofk the chain will be positively overcome.

And the invention has as a still further object to provide a coupling link which,

. while being particularly .designed for the purpose indicated, may also be adapted for general use. j

Other and incidental objects will appear hereinafter. In the drawings:

Figure 1 is a Vfragmentary side elevation showing my improved link in usev in connection with a conventional type of automobile non-skid chain,

Fig. 2 is a detail perspective view of the device,

. Fig. 3 is a the link, and

Fig. a is a transverse sectional viewv taken centrally through the device.

In carrying the invention into effect I employ a bocy 10 in the form of a loopsplit at one side to produce confronting hooks 11 at the ends of the link body. These hooks are longitudinal sectional view of preferably formed with tapering bills hav- A ing inclined inner edges. Projecting within the link from the back thereof is a medial lug 12 upon which lare mounted companion locking disks or elements 13, the peripheral edges of which are preferably inclined orr beveled sc as not to offer any surface obstruction. These disks are arranged at opposite sides of the lug 12 and are rotatably connected therewithY by a rivet or other suitable fastening device 14. v

It will be observed that the disksl?) cross the throats of the hooks 11 and project beyond the free ends of said bills to normally close the gap therebetween. Formed in the Specification of Letters Patent.' l 31,1920'.

1919., Sefarad-2913833.'

disks notches. 1:5- pmt -thaugma ,peripheries ofthe disks. TIhiis', byloringin'g thesenotches `into register atl the.' gap.. be: tween the hooks 11, a flink/of a chain'may, as

suggested in', Fig. -3',1loe` inserted iny the notches when, by rotating, the disksinunif sonin one direction, the-.chainlink Vmay be v engaged in one of the hooks I11 of the link.

6 5k disks at .the gap of thelink, the link'of the By then again positioning the notches of the chain at its opposite end may be disposed in said notches and the disks rotated in the op-k posite direction forengaging said ylink in the other of the hooks 11. Thus, the linkwill effectivelyconnect the ends of the chain and since the notchesV of the disks must'be brought into vregister and'rotated in unison in 1order to free either end of the chain, itV A' will be seen that accidental freeing of the chain by the link will be extreniely'unlikely.

Butin order that it may be positively overcome I provide a means for locking the disks against rotation, the use of this means rendering the link doubly secure. Such means consists in a stop or cotter pin 16 which,

when the notches of the disks are brought to-'V gether at opposite sides o f the back of the link body, is removably fitted through a suitable opening in the back ofthe link and is received at itsends within said notches.

The lock or pin will thus prevent movement of the diskswhile, when desired, it may be Vreadily detached andthedisks operated ,tol free the chain ends. By spacing the ends of thepin linwardly from the outer sides of se f the disks, the pin is veffectively prevented from engaging and possibly puncturing the tire to which the tire chain is applied. Also in lieveling the edges ofthe disks, a noncuttiiig surface is presented to the adj acent.V

portion of the tire.

I accordingly provi de a highly-.eii'ective type of coupling link and, as previously'in- A dicated, the device is particularly designed for use in connecting the ends of automobilel "non-skid chains so that, by the use of my viinproved link, tliese chains-maybe securely fastened about awheel tire. In Fig. 1,* have shown the devicev as thus used. .'Inl'tliis figure, 17 indicates a conventional'type-of. f

19 and, yas will be seen, tlievdevice is adapted `to connect the terminal links of the chain vmotor vehicle Vwheel about` which isfltted an` -l ordinary tire 18. Arranged about the tire 'If have conventionally shownA a non-skid chain i I iio` ` for securely fastening the chain upon the tire. However, while I have thus illustrated and described the particular purpose for which the invention is designed, still, I do not wish to be limited in this regard since, as

will now be readily appreciated, the link is arranged in opposed spaced relation thereby Y forming a gap, said body being provided intermediate its ends with an upstanding lug terminating below said gap, a lpivot pin eX- tending through said lug, disks rotatably carried by said pivot pin on opposite sides e tending throughsaid opening and having its Y endportions arranged withink said linkreceiving notches for securing the disks againstrotation, the ends of said pin terminating inwardly of the outer sides of said disks whereby the same are spaced from the adj acent tire. Y

In testimony whereof I affix my signature.

vDAVID MADILL. [L s] 

